10/28/97 Internet Routing Problems

From: stats@merit.edu
Date: Wed Oct 29 1997 - 10:00:05 EST


See http://www.merit.edu/ipma for a more detailed report on
routing problems and recommendations on ways service providers can
limit the spread of invalid routing information.
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Reserved Network and Host Announcements
---------------------------------------
192.116.222.0/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
192.116.222.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5486 Incomplete
194.64.0.16/30 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
194.64.0.8/30 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
195.180.1.130/32 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
195.180.2.48/28 at Mae-West from ANS (AS1673) ASPATH=1673 1667 6805 2871 Incomplete
206.80.170.204/30 at Mae-East from Grid (AS6113) ASPATH=6113 IGP
207.212.14.32/27 at Mae-East from AGIS (AS4200) ASPATH=4200 5672 10501 IGP
24.48.21.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.21.0/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.22.64/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.22.64/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.24.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.24.0/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.26.0/28 at Mae-East from ANS (AS1673) ASPATH=1673 1333 Incomplete
24.48.26.0/28 at Mae-West from ANS (AS1673) ASPATH=1673 1333 Incomplete

Largest Sources of BGP Instability
----------------------------------
(announcements + withdraws = total)

1. ACSI (AS6467) at Mae-East 133896 + 156851 = 290747 BGP prefix updates
2. NetKonect (AS6716) at Mae-East 7 + 251822 = 251829 BGP prefix updates
3. GetNet (AS5784) at Mae-East 2 + 204361 = 204363 BGP prefix updates
4. idc (AS4694) at Mae-West 75 + 203596 = 203671 BGP prefix updates
5. USCyber (AS4136) at Mae-East 0 + 193435 = 193435 BGP prefix updates
6. ACSI (AS6467) at Mae-West 41848 + 82464 = 124312 BGP prefix updates
7. Interpath (AS3407) at Mae-East 134 + 119398 = 119532 BGP prefix updates
8. SPRINT (AS1239) at Mae-East 77902 + 22070 = 99972 BGP prefix updates
9. DISA (AS568) at Mae-West 2130 + 84323 = 86453 BGP prefix updates
10. AGIS (AS4200) at Mae-East 37462 + 32072 = 69534 BGP prefix updates

Instability Ranking of Service Providers
----------------------------------------
(The number of BGP announcements divided by the number
of routing table entries)

1. NetAxs(AS4969) at Mae-East 147.97 (5919 ann, 40 entries)
2. AGIS(AS4200) at Mae-East 17.45 (37462 ann, 2147 entries)
3. GoodNet(AS5696) at AADS 11.95 (5187 ann, 434 entries)
4. onecall(AS6402) at AADS 11.26 (428 ann, 38 entries)
5. HLC(AS4565) at Mae-West 8.22 (534 ann, 65 entries)
6. HLC(AS4565) at Mae-East 7.52 (504 ann, 67 entries)
7. Voicenet(AS3932) at Mae-East 7.00 (385 ann, 55 entries)
8. OLEANE(AS2917) at Mae-East 6.62 (265 ann, 40 entries)
9. Cableol(AS5089) at Mae-East 6.00 (12 ann, 2 entries)
10. WEN(AS4540) at PacBell 6.00 (54 ann, 9 entries)
11. Nacamar(AS3257) at Mae-West 6.00 (276 ann, 46 entries)
12. INS(AS6660) at Mae-East 5.89 (430 ann, 73 entries)
13. Nacamar(AS3257) at Mae-East 5.79 (307 ann, 53 entries)
14. HLC(AS4565) at AADS 5.68 (369 ann, 65 entries)
15. AT&T(AS6478) at PacBell 5.57 (9158 ann, 1643 entries)
16. Advantis(AS2685) at Mae-East 5.31 (2080 ann, 392 entries)
17. Internex(AS2828) at Mae-East 5.27 (327 ann, 62 entries)
18. ACSI(AS6467) at Mae-East 5.22 (133896 ann, 25661 entries)
19. DISC(AS7170) at Mae-East 5.15 (412 ann, 80 entries)
20. Servint(AS7960) at Mae-East 5.00 (10 ann, 2 entries)

Count of Announced Prefixes with AS origin IRR Discrepancies
------------------------------------------------------------
(See http://www.merit.edu/ipma/problems/)

1. ACSI (6467) at mae-east 6432
2. SPRINT (1239) at mae-east 1290
3. internetMCI (3561) at aads 557
4. BBNplanet (1) at mae-west 424
5. AT&T (6478) at pb 241
6. AGIS (4200) at mae-east 206
7. CWIX (5683) at mae-east 178
8. Digex (2548) at mae-west 174
9. Grid (6113) at pb 158
10. NASA (297) at mae-west 154






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